It seems to be. I was playing on the infinity slayer and crimson DLC playlists and found games in about 10-15 seconds. I had some fun games and didn't encounter any glitching/exploits or lag. They're also releasing some smaller maps at the end of the month so it should be getting even better.

Also Haven wasn't chosen all the time. It seems the community might have finally gotten bored of the same map over and over again!